Solved! Could anyone tell me where is bios chip??

[Aman2211]

It's a Toshiba Satellite c50-b 14D

 

[Saga Lout]

I just put that name and model number in a Netwide search but I couldn't magnify the small diagrams to find the chip.

However, I did find this

https://www.manualslib.com/manual/786378/Toshiba-C50-B.html

which implies you don't need to go near the chip.